

package com.hazelcast.internal.partition.impl;

import com.hazelcast.instance.impl.Node;
import com.hazelcast.instance.impl.NodeState;
import com.hazelcast.internal.partition.InternalPartitionService;
import com.hazelcast.logging.ILogger;

/**
 * A periodic task to publish partition state to cluster members in a predefined interval.
 */
class PublishPartitionRuntimeStateTask implements Runnable {
    private final Node node;
    private final InternalPartitionServiceImpl partitionService;
    private final ILogger logger;

    PublishPartitionRuntimeStateTask(Node node, InternalPartitionServiceImpl partitionService) {
        this.node = node;
        this.partitionService = partitionService;
        logger = node.getLogger(InternalPartitionService.class);
    }

    @Override
    public void run() {
        if (partitionService.isLocalMemberMaster()) {
            MigrationManager migrationManager = partitionService.getMigrationManager();
            boolean migrationAllowed = migrationManager.areMigrationTasksAllowed() && !partitionService.isFetchMostRecentPartitionTableTaskRequired();
            if (!migrationAllowed) {
                logger.fine("Not publishing partition runtime state since migration is not allowed.");
                return;
            }

            if (migrationManager.hasOnGoingMigration()) {
                logger.info("Remaining migration tasks: " + partitionService.getMigrationQueueSize() + ". (" + migrationManager.getStats().formatToString(logger.isFineEnabled()) + ")");
            } else
                if (node.getState() == NodeState.ACTIVE) {
                    partitionService.checkClusterPartitionRuntimeStates();
                }
        }
    }
}
